Home / 13,207.71-18,226.85-7,902.75

Finding the Fourth Proportional to 13,207.71, 18,226.85 and 7,902.75

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Solution

The fourth proportional to 13,207.71, 18,226.85 and 7,902.75 is: 10,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.71 : 18,226.85 = 7,902.75 : x
  2. Step 2: Convert to fraction form
    13,207.71/18,226.85 = 7,902.75/x
  3. Step 3: Cross multiply
    13,207.71x = 18,226.85 × 7,902.75
  4. Step 4: Simplify right side
    13,207.71x = 144,042,238.84
  5. Step 5: Solve for x
    x = 144,042,238.84/13,207.71
  6. Step 6: Final answer
    x = 10,905.92

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.